package cn.credit.loan.config;

import javax.sql.DataSource;

import org.mybatis.spring.SqlSessionFactoryBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;

/**
 * 读取MyBatis主配置文件
 * @author
 *
 */
@Configuration
public class MyBatisConfig {

	@Bean
	@ConditionalOnMissingBean // 当容器里没有指定的Bean的情况下创建该对象
	public SqlSessionFactoryBean sqlSessionFactory(DataSource dataSource) {
		SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
		// 设置数据源
		sqlSessionFactoryBean.setDataSource(dataSource);
		// 设置mybatis的主配置文件
		ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
		Resource mybatisConfigXml = resolver.getResource("classpath:mybatis-config.xml");
		sqlSessionFactoryBean.setConfigLocation(mybatisConfigXml);
		// 设置别名包
		sqlSessionFactoryBean.setTypeAliasesPackage("cn.my.entity");
		return sqlSessionFactoryBean;
	}
}